Which of the following is natural acid-base indicator?
I. Litmus
II. Turmeric
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Both I and II.
- The three most common indicators to test for acids and bases are: Litmus; Methyl orange; Phenolphthalein. Litmus is a natural indicator.
- Turmeric, red cabbage, China rose, etc. are some common natural indicators used widely to show the acidic or basic character of substances.